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pathotype

Catalogue: GRDC Updates (North)
Until such varieties are released, northern growers and advisers need to select varieties firstly on the basis of crown rot risk and then manage for stripe rust ... There is a risk of WSMV being spread through infected seed into new areas... We have not been able to determine an economic threshold for RGB in sorghum from these trials...
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Catalogue: GRDC Updates (South)
Until such varieties are released, northern growers and advisers need to select varieties firstly on the basis of crown rot risk and then manage for stripe rust ... There is a risk of WSMV being spread through infected seed into new areas... We have not been able to determine an economic threshold for RGB in sorghum from these trials...
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Catalogue: GRDC Updates (North)
The proportion of the total seasonal water use which is used by a crop after flowering goes a long way to determining the yield and quality of the grain produced... The management plan has to cater for the variation between seasons that occurs, and requires flexibility... Growers need to investigate their soils for themselves...
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Catalogue: GRDC Updates (South)
The proportion of the total seasonal water use which is used by a crop after flowering goes a long way to determining the yield and quality of the grain produced... The management plan has to cater for the variation between seasons that occurs, and requires flexibility... Growers need to investigate their soils for themselves...
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Catalogue: Ground Cover
Researchers have detected a new leaf rust pathotype on samples of the Naparoo wheat variety collected in northern New South Wales in early August... As a consequence of the discovery, Professor Park has urged grain growers to be vigilant in checking their crops for leaf rust, and submit plant samples they suspect are infected with the disease for testing... He says the new pathotype found near Gragin and Graman, east of Moree, is a mutation of an existing pathotype that has added virulence for the leaf rust resistance gene, Lr24...
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Catalogue: Ground Cover
Researchers have detected a new leaf rust pathotype on samples of the Naparoo wheat variety collected in northern New South Wales in early August... As a consequence of the discovery, Professor Park has urged grain growers to be vigilant in checking their crops for leaf rust, and submit plant samples they suspect are infected with the disease for testing... "It has since become widespread in Victoria, southern and northern NSW, South Australia and Tasmania, providing an indication of the rate the new pathotype could spread its range," he says...
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Catalogue: GRDC Media
Growers warned of new leaf rust pathotype in WA.. An eastern Australian wheat leaf rust pathotype has been identified in four diverse regions across Western Australia (WA), reminding growers that long-distance movement of rust inoculum is a serious threat to crop health and hygiene... "Wyalkatchem may shift from R-MR to MS and Emu Rock from R to MS-S following further testing at the ACRCP. Some varieties have other leaf rust genes that are expected to still be effective so have a lesser rating shift- King Rock, Fortune and Zippy are likely to shift from R/MR to MRMS. Cultivars Carnamah and Cobra may also be vulnerable to the new pathotype but further tests are needed to establish their responses more accurately...
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Catalogue: Ground Cover
It can be reported that no new pathotypes of wheat stem rust, wheat leaf rust, barley leaf rust or oat stem rust have been detected to date... Cultivar responses are not expected to change... It was less common in northern NSW; the pathotype associated with LongReach LincolnA (64 E0 A-) has been recovered at low frequency, but does not appear to have had an adverse effect on LongReach LincolnA and BolacA during the season; and the 'Yr17-27' pathotype was first reported in October (Cereal Rust Report, Volume 8, Issue 7, available at http://sydney.edu.au/agriculture/plant_breeding_institute/cereal_rust/reports_forms.shtml )...
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Catalogue: Ground Cover
It can be reported that no new pathotypes of wheat stem rust, wheat leaf rust, barley leaf rust or oat stem rust have been detected to date... Cultivar responses are not expected to change... It was less common in northern NSW; the pathotype associated with LongReach LincolnA (64 E0 A-) has been recovered at low frequency, but does not appear to have had an adverse effect on LongReach LincolnA and BolacA during the season; and the 'Yr17-27' pathotype was first reported in October (Cereal Rust Report, Volume 8, Issue 7, available at http://sydney.edu.au/agriculture/plant_breeding_institute/cereal_rust/reports_forms.shtml )...
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Catalogue: Ground Cover
Every year since 1919 staff at the University of Sydney have monitored Australian cereal rust populations using samples of rusted plant material collected throughout Australia... The most likely explanation is that the new pathotype has come to Australia from another wheat-growing region... In September 2014 the new pathotype was found in leaf rust samples collected from Mount Hope on the Eyre Peninsula ( Wyalkatchem ) and Moonta ( Axe ) and Port Broughton ( Corack ) on the Yorke Peninsula...
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